ARM: fail build if hardcoded struct offsets are wrong
[libav.git] / libavcodec / arm / mpegvideo_neon.S
CommitLineData
41331b65
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1/*
2 * Copyright (c) 2010 Mans Rullgard
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include "asm.S"
a76eec3b 22#include "asm-offsets.h"
41331b65
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23
24function ff_dct_unquantize_h263_inter_neon, export=1
25 add r0, r0, #0x2200
26 add r12, r0, #BLOCK_LAST_INDEX-0x2200
27 ldr r12, [r12, r2, lsl #2]
28 add r0, r0, #INTER_SCANTAB_RASTER_END-0x2200
29 ldrb r12, [r0, r12]
30 sub r2, r3, #1
31 lsl r0, r3, #1
32 orr r2, r2, #1
33 add r3, r12, #1
34endfunc
35
36function ff_dct_unquantize_h263_neon, export=1
37 vdup.16 q15, r0 @ qmul
38 vdup.16 q14, r2 @ qadd
39 vneg.s16 q13, q14
40 cmp r3, #4
41 mov r0, r1
42 ble 2f
431:
44 vld1.16 {q0}, [r0,:128]!
45 vclt.s16 q3, q0, #0
46 vld1.16 {q8}, [r0,:128]!
47 vceq.s16 q1, q0, #0
48 vmul.s16 q2, q0, q15
49 vclt.s16 q11, q8, #0
50 vmul.s16 q10, q8, q15
51 vbsl q3, q13, q14
52 vbsl q11, q13, q14
53 vadd.s16 q2, q2, q3
54 vceq.s16 q9, q8, #0
55 vadd.s16 q10, q10, q11
56 vbif q0, q2, q1
57 vbif q8, q10, q9
58 subs r3, r3, #16
59 vst1.16 {q0}, [r1,:128]!
60 vst1.16 {q8}, [r1,:128]!
61 bxle lr
62 cmp r3, #8
63 bgt 1b
642:
65 vld1.16 {d0}, [r0,:64]
66 vclt.s16 d3, d0, #0
67 vceq.s16 d1, d0, #0
68 vmul.s16 d2, d0, d30
69 vbsl d3, d26, d28
70 vadd.s16 d2, d2, d3
71 vbif d0, d2, d1
72 vst1.16 {d0}, [r1,:64]
73 bx lr
74endfunc
75
76function ff_dct_unquantize_h263_intra_neon, export=1
77 push {r4-r6,lr}
78 ldr r6, [r0, #AC_PRED]
79 add r5, r0, #0x2700
80 cmp r6, #0
81 movne r12, #63
82 bne 1f
83 add lr, r0, #0x2200
84 add r12, lr, #BLOCK_LAST_INDEX-0x2200
85 add lr, lr, #INTER_SCANTAB_RASTER_END-0x2200
86 ldr r12, [r12, r2, lsl #2]
87 ldrb r12, [lr, r12]
881: ldr r5, [r5, #H263_AIC-0x2700]
89 ldrsh r4, [r1]
90 cmp r5, #0
91 mov r5, r1
92 movne r2, #0
93 bne 2f
94 cmp r2, #4
95 addge r0, r0, #4
96 sub r2, r3, #1
97 ldr r6, [r0, #Y_DC_SCALE]
98 orr r2, r2, #1
99 smulbb r4, r4, r6
1002: lsl r0, r3, #1
101 add r3, r12, #1
102 bl ff_dct_unquantize_h263_neon
103 vmov.16 d0[0], r4
104 vst1.16 {d0[0]}, [r5]
105 pop {r4-r6,pc}
106endfunc